Boiler-tube blower.



PATENTED JUNE 13, 1905.

G E. AVERILL.

BOILER TUBE BLOWER.

APPLICATION FILED NOV. 7, 1904.

Mfnesses:

NiTnn STATES Patented June 13, 1905.

PATENT OFFICE.

GEORGE E. AVERILL, OF CLEVELAND, OHIO, ASSIGNOR OF ONE-HALF TO HARRY S. IVRIGHT, OF BUFFALO, NEWV YORK.

BOILER-TUBE BLOWER.

SPECIFICATION forming part of Letters Patent N 791,996, dated June 13, 1905.

Application filed November 7, 1904:. Serial No. 231,681.

To (bf/Z 1071/0717 it may concern.-

Be it known that I, GEORGE E. AVERILL, a citizen of the United States of America, and a resident of Cleveland, Ouyahoga county, and State of Ohio, have invented certain new and useful Improvements in Boiler-Tube Blowers, of which the following is a specification.

This invention relates to boiler-tube blowers; and it consists of a steam-pipe so constructed and applied to a boiler that the engineer can at any time easily and readily blow out the tubes and prevent the accumulation of soot or scale therein.

The invention consists of a steam-pipe centrally located in the boiler, provided with a perforated head on its inner end, and adapted for injecting steam into the rear ends of the tubes for ejecting the soot out of the forward ends of the tubes into the smoke-stack.

In the annexed drawings, which illustrate my invention, Figure l is a side elevation of a boiler and stack, partly in section, showing the blowing device attached. Fig. 2 is alongitudinal section of the perforated head, and Fig. 3 is a sectional view of a flexible joint on the front end of the steam-pipe.

A represents a horizontal tubular boiler, and B B the tubes.

0 is a pipe located in the center tube and is supported in perforated rings or collars DD,

iixed in the tube, in which it may have slidable movements.

E is a perforated head mounted on the inner end of pipe O. The head is made in two parts, each part havingascrew-threaded neck, by means of which they are fixed onto the pipe, which has two screw-threaded surfaces 0 0. Between said screw-threaded surfaces the pipe is perforated to admit steam into the chamber in the head, from which the steam is discharged through diagonal perforations F F in said head. The steam thus discharged is directed into the rear ends of the tubes, as shown by the arrows.

G is a flexible elbow on the front end of the pipe O for connecting it to a vertical steampipe [-1, which will permit the pipe O to be moved in and out without binding of said pipe in its bearings D D. Said elbow consists of two members g g, coupled by a union-nut J. The part g has an outside screw-thread which screws into the inside of part g, which also has an outside screw-thread, upon which the nut J is screwed. K is a packing-ring in said nut J.

It will be seen that with the pipe in the position shown in the drawings that the steam will reach the outer circle of tubes and that by drawing the pipe forward the steam can be directed into the inner circle of tubes, and thus make the device available for blowing out all the tubes in a quick and easy manner.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. In a boiler-tube blower, a pipe slidably supported in the center of the boiler, a chambered head having diagonal perforations, mounted on the inner end of said pipe, perforations in said pipe within the head, and adapted to inject steam into the rear ends of the tubes, substantially as described.

2. In a boiler-tube blower, a pipe slidably supported in the center of the boiler, a chambered head having diagonal perforations, mounted on the inner end of said pipe, perforations in said pipe within the head, and a flexible elbow on the forward end of said pipe, and adapted for adjusting the pipe and its head to direct the injection of steam into all the tubes, substantially as described.

Signed by me at Cleveland, Ohio, this 27th day of October, 1904:.

GEO. E. AVERILL. 

